Isomorphic series method
BioMolecular Crystallography From phases determination to final structure
Quizzed article REF: P1111 V2
Isomorphic series method
BioMolecular Crystallography From phases determination to final structure

Author : Jean CAVARELLI

Publication date: December 10, 2018, Review date: October 23, 2020 | Lire en français

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2. Isomorphic series method

Introduced in 1954 thanks to the pioneering work of Max Perutz, this method has enabled the development of biological crystallography. It consists in introducing one or more atoms with a high atomic number (heavy atoms) into the native crystal, thereby disrupting the intensity and phase of reflections in relation to the initial structure.

However, this method is increasingly being replaced by the SAD/MAD method (§ 3

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